root@ubuntu:/home/christopher# lsmod | grep "conntrack"
nf_conntrack_ipv4      17932  2 iptable_nat
nf_conntrack           59864  3 iptable_nat,nf_nat,nf_conntrack_ipv4
nfnetlink               6680  3 nf_nat,nf_conntrack_ipv4,nf_conntrack
root@ubuntu:/home/christopher# lsmod | grep "nat"
iptable_nat             7684  1
nf_nat                 17964  1 iptable_nat
nf_conntrack_ipv4      17932  2 iptable_nat
nf_conntrack           59864  3 iptable_nat,nf_nat,nf_conntrack_ipv4
nfnetlink               6680  3 nf_nat,nf_conntrack_ipv4,nf_conntrack
ip_tables              12232  2 iptable_filter,iptable_nat
x_tables               15108  3 xt_tcpudp,iptable_nat,ip_tables